Side element of a shoe upper



FIG. 1 is a perspective view of a side element of a shoe upper showing my new design;

FIG. 2 is a side elevational view the side element of a shoe upper shown in FIG. 1;

FIG. 3 is a top plan view of the side element of a shoe upper shown in FIG. 1; and,

FIG. 4 is a rear elevational view of the side element of a shoe upper shown in FIG. 1.

The broken line showing of the boomerang shapes in the claimed side element and the remainder of the shoe is for illustration purposes only and forms no part of the claimed design. 

The ornamental design for a side element of a shoe upper, as shown and described. 